Month: September 2015

I've recently come across a situation where I had an encrypted Samsung laptop that needed a reimage. The previous owner had encrypted the HDD so that no one who would find /steal the laptop could access the data from it, which made it difficult to even boot from the USB I wanted to use, as it always loaded the OS it had installed.

If you are ever in this situation, here is what needs to be done to make the laptop usable again:

Boot the computer → BIOS

Go to Advanced → Fast Bios Mode → set it to disabled (this will allow you the needed time to boot the OS from the bootable USB stick/CD/DVD you plan to use)

Then go to Boot Priority order and set them as follows:

USB HDD (the bootable USB I used in my case)

SATA HDD

…

Ubuntu → disable it (this was the OS previously installed on the laptop – this step is optional)

Reboot → Install OS

Reboot → Advanced → Fast Bios Mode → Enabled

Celebrate.

You could also install the OS from Live mode and use EFI mode to delete the previous record of the OS used, so that there wouldn't be multiple entries of the same OS. What is mandatory for Samsung laptops is to disable the Fast boot mode and the order for boot devices to be set 1st for the bootable USB you plan to use, the purpose here being installing a new OS (be it Ubuntu or anything else).

Customer support has been designed to be a link between the customer and the product. Now, even though we may be super smart and figure out almost everything on our own, there may come a day when customer support is needed. Here are 10 things to keep in mind in order to get the best out of a support interaction:

If you work in IT or, at least, had any experience in this area, you definitely know that there are multiple terms to define the testing world. The biggest competitors here are QA (Quality Assurance) and QC (Quality Control) which is basically the same as Software Testing.

Let's see how these are defined:

Quality Assurance (QA) is a part of quality management focused on providing confidence that quality requirements will be fulfilled. [ISO 9000]

Quality Control/Testing is a process that consisting of all the life cycles activities, both static and dynamic, concerned with planning, preparing and evaluating software products and related work products. It tries to determine if they satisfy specified requirements in order to demonstrate that they are fit for purpose and to detect defects. [ISTQB glossary]

Quality Assurance

This is about process oriented and preventive activities. It means that these activities are focused on improving the software development process and that the system will meet its objectives. The QA Engineer is active throughout the product’s lifecycle and communicates with all the people involved in the process, from Project Manager to Software Developer and QC Engineer. The QA analyses and seeks the continuous improvement of both process and product while ensuring all tasks demonstrate appropriate quality and that are finished on time.

Quality Control/Software testing

Well, this is about product orientated activities and it is a corrective process (testing is a process rather than a single activity - there are a series of activities involved). The QC Engineer must find bugs in the system before users do, investigate and report on how well the software performs relative to its expectations and is generally active at the end of a coding cycle.

Conclusions

QA and QC both have to make the software better, however, QA is about process orientated and preventive activities, while QC involves a corrective process and product orientated activities.

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